Arrays and Strings - C Programming MCQ Questions and Answers

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41.
What will be the output of the following code?
void main()
{
      int a[10];
      printf("%d %d", a[-1], a[12]);
}

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42.
What does the following declaration mean?
int (*ptr)[10];

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43.
Array passed as an argument to a function is interpreted as

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44.
What will be the output of the program if the array begins at 65472 and each integer occupies 2 bytes?
#include<stdio.h>
void main()
{
    int a[3][4] = {1, 2, 3, 4, 4, 3, 2, 1, 7, 8, 9, 0};
    printf("%u, %u", a+1, &a+1);
}

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45.
What will be the output of the program?
#include<stdio.h>
int main()
{
    int arr[1] = {10};
    printf("%d", 0[arr]);
    return 0;
}

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46.
What will be the output of the program if the array begins at address 65486?
#include<stdio.h>
void main()
{
    int arr[] = {12, 14, 15, 23, 45};
    printf("%u, %u", arr, &arr);
}

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47.
What will be the output of the program?
#include<stdio.h>
void main()
{
    float arr[] = {12.4, 2.3, 4.5, 6.7};
    printf("%d", sizeof(arr)/sizeof(arr[0]));
}

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48.
Which of the following is correct way to define the function fun() in the below program?
#include<stdio.h>
void main()
{
    int a[3][4];
    fun(a);
}

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49.
Which of the following statements are correct about the program below?
#include<stdio.h>
void main()
{
    int size, i;
    scanf("%d", &size);
    int arr[size];
    for(i=1; i<=size; i++)
    {
        scanf("%d", arr[i]);
        printf("%d", arr[i]);
    }
}

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50.
Which of the following statements are correct about an array?
1. The array int num[26]; can store 26 elements.
2. The expression num[1] designates the very first element in the array.
3. It is necessary to initialize the array at the time of declaration.
4. The declaration num[SIZE] is allowed if SIZE is a macro.

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